First observation of the drip line nucleus 140Dy: Identification of a 7 μs K isomer populating the ground state band

W. Królas; R. Grzywacz; K. P. Rykaczewski; J. C. Batchelder; C. R. Bingham; C. J. Gross; D. Fong; J. H. Hamilton; D. J. Hartley; J. K. Hwang; Y. Larochelle; T. A. Lewis; K. H. Maier; J. W. McConnell; A. Piechaczek; A. V. Ramayya; K. Rykaczewski; D. Shapira; M. N. Tantawy; J. A. Winger; C. H. Yu; E. F. Zganjar; A. T. Kruppa; W. Nazarewicz; T. Vertse

doi:10.1103/physrevc.65.031303

First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band

W. Królas, R. Grzywacz, K. P. Rykaczewski, J. C. Batchelder, C. R. Bingham, C. J. Gross, D. Fong, J. H. Hamilton, D. J. Hartley, J. K. Hwang, Y. Larochelle, T. A. Lewis, K. H. Maier, J. W. McConnell, A. Piechaczek, A. V. Ramayya, K. Rykaczewski, D. Shapira, M. N. Tantawy, J. A. WingerC. H. Yu, E. F. Zganjar, A. T. Kruppa, W. Nazarewicz, T. Vertse

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Abstract

A new 7 μs isomer in the drip line nucleus ¹⁴⁰Dy was selected from the products of the ⁵⁴Fe (315 MeV) + ⁹²Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an I^π = 8^- {ν9/2^-[514]⊗ ν7/2⁺[404]} Kisomer (T _1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from ¹⁴¹Ho to the 0⁺ ground state and to the 2⁺ excited state in ¹⁴⁰Dy is discussed.

Original language	English
Article number	031303
Pages (from-to)	313031-313034
Number of pages	4
Journal	Physical Review C - Nuclear Physics
Volume	65
Issue number	3
DOIs	https://doi.org/10.1103/physrevc.65.031303
State	Published - Mar 1 2002

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Królas, W., Grzywacz, R., Rykaczewski, K. P., Batchelder, J. C., Bingham, C. R., Gross, C. J., Fong, D., Hamilton, J. H., Hartley, D. J., Hwang, J. K., Larochelle, Y., Lewis, T. A., Maier, K. H., McConnell, J. W., Piechaczek, A., Ramayya, A. V., Rykaczewski, K., Shapira, D., Tantawy, M. N., ... Vertse, T. (2002). First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band. Physical Review C - Nuclear Physics, 65(3), 313031-313034. Article 031303. https://doi.org/10.1103/physrevc.65.031303

@article{2d862ce374354b67b700098a254ab6b9,

title = "First observation of the drip line nucleus 140Dy: Identification of a 7 μs K isomer populating the ground state band",

abstract = "A new 7 μs isomer in the drip line nucleus 140Dy was selected from the products of the 54Fe (315 MeV) + 92Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an Iπ = 8- \{ν9/2-[514]⊗ ν7/2+[404]\} Kisomer (T 1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from 141Ho to the 0+ ground state and to the 2+ excited state in 140Dy is discussed.",

author = "W. Kr{\'o}las and R. Grzywacz and Rykaczewski, \{K. P.\} and Batchelder, \{J. C.\} and Bingham, \{C. R.\} and Gross, \{C. J.\} and D. Fong and Hamilton, \{J. H.\} and Hartley, \{D. J.\} and Hwang, \{J. K.\} and Y. Larochelle and Lewis, \{T. A.\} and Maier, \{K. H.\} and McConnell, \{J. W.\} and A. Piechaczek and Ramayya, \{A. V.\} and K. Rykaczewski and D. Shapira and Tantawy, \{M. N.\} and Winger, \{J. A.\} and Yu, \{C. H.\} and Zganjar, \{E. F.\} and Kruppa, \{A. T.\} and W. Nazarewicz and T. Vertse",

note = "Publisher Copyright: {\textcopyright} 2002 The American Physical Society.",

year = "2002",

month = mar,

day = "1",

doi = "10.1103/physrevc.65.031303",

language = "English",

volume = "65",

pages = "313031--313034",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

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Królas, W, Grzywacz, R, Rykaczewski, KP, Batchelder, JC, Bingham, CR, Gross, CJ, Fong, D, Hamilton, JH, Hartley, DJ, Hwang, JK, Larochelle, Y, Lewis, TA, Maier, KH, McConnell, JW, Piechaczek, A, Ramayya, AV, Rykaczewski, K, Shapira, D, Tantawy, MN, Winger, JA, Yu, CH, Zganjar, EF, Kruppa, AT, Nazarewicz, W & Vertse, T 2002, 'First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band', Physical Review C - Nuclear Physics, vol. 65, no. 3, 031303, pp. 313031-313034. https://doi.org/10.1103/physrevc.65.031303

TY - JOUR

T1 - First observation of the drip line nucleus 140Dy

T2 - Identification of a 7 μs K isomer populating the ground state band

AU - Królas, W.

AU - Grzywacz, R.

AU - Rykaczewski, K. P.

AU - Batchelder, J. C.

AU - Bingham, C. R.

AU - Gross, C. J.

AU - Fong, D.

AU - Hamilton, J. H.

AU - Hartley, D. J.

AU - Hwang, J. K.

AU - Larochelle, Y.

AU - Lewis, T. A.

AU - Maier, K. H.

AU - McConnell, J. W.

AU - Piechaczek, A.

AU - Ramayya, A. V.

AU - Rykaczewski, K.

AU - Shapira, D.

AU - Tantawy, M. N.

AU - Winger, J. A.

AU - Yu, C. H.

AU - Zganjar, E. F.

AU - Kruppa, A. T.

AU - Nazarewicz, W.

AU - Vertse, T.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - A new 7 μs isomer in the drip line nucleus 140Dy was selected from the products of the 54Fe (315 MeV) + 92Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an Iπ = 8- {ν9/2-[514]⊗ ν7/2+[404]} Kisomer (T 1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from 141Ho to the 0+ ground state and to the 2+ excited state in 140Dy is discussed.

AB - A new 7 μs isomer in the drip line nucleus 140Dy was selected from the products of the 54Fe (315 MeV) + 92Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an Iπ = 8- {ν9/2-[514]⊗ ν7/2+[404]} Kisomer (T 1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from 141Ho to the 0+ ground state and to the 2+ excited state in 140Dy is discussed.

UR - https://www.scopus.com/pages/publications/4244085878

U2 - 10.1103/physrevc.65.031303

DO - 10.1103/physrevc.65.031303

M3 - Article

AN - SCOPUS:4244085878

SN - 0556-2813

VL - 65

SP - 313031

EP - 313034

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 031303

ER -

First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band

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